Tsung is a distributed load testing tool. It is protocol-independent and can currently be used to stress HTTP, WebDAV, PostgreSQL, MySQL, LDAP, AMQP, and XMPP/Jabber servers. It simulates user behavior using an XML description file, reports many measurements in real time (statistics can be customized with transactions, and graphics generated using gnuplot). For HTTP, it supports 1.0 and 1.1, has a proxy mode to record sessions, supports GET, POST, PUT, and DELETE methods, cookies, and basic/digest authentication. It also has support for SSL, WebSocket, and BOSH.

Ybot is erlang bot software inspired by Github hubot. It supports IRC and XMPP transports and is extensible with plugins. Plugins can be written with Python, Ruby, or shell. It supports IRC chat, XMPP multi user chat, and 37 signals Campfire chat. It can simultaneously run any number of bots on different transports.

epers stands for "Erlang persistence". As the name suggests, it tries to make it easy to use databases in Erlang programs, to make the language a little more agile, and (humbly) offer a nice adapter for several databases, hiding their implementation details (and the API of the library/framework/driver used to communicate with them). To achieve this, it aims to offer a somewhat consistent API to define and work with your model, while at the same not coupling your code too tightly to it.

RabbitMQ is an implementation of AMQP, the emerging standard for high performance enterprise messaging. The RabbitMQ server is based on a proven platform, Erlang/OTP, offering exceptionally high reliability, availability, and scalability. It delivers good throughput and latency performance that is predictable and consistent. The code base is compact and easily maintainable, facilitating rapid customization and hot deployment. The RabbitMQ distribution also includes a Java client that interoperates with any compliant AMQP server.

Esdl is library for accessing SDL and OpenGL
through Erlang. SDL handles 2d graphics, user
events, and audio while OpenGL handles 3d
graphics. SDL (Simple DirectMedia Layer) is a
cross-platform multimedia library designed to
provide fast access to the graphics framebuffer
and audio device. It also does event handling from
mouse, keyboards, and joysticks. OpenGL is a
cross-platform standard for 3D rendering and 3D
hardware acceleration.

Erlang is a small concurrent functional programming language developed by Ericsson. It is being used by Ericsson as a systems programming language for large concurrent fault-tolerant distributed systems.

ERDexpert is a interface to an Erlang expert
assertion engine. ERDialog is an application
framework using Yaws. Multiple applets can be
loaded into the framework. The existing applets
include a file launcher, mpd audio interface, and
wiki. This is the full release and only needs
Erlang and Yaws installed.

ERDialog is part of a simple Web based framework
with Erlang. It is a Web browser interface and
system for developing programs using the Yaws HTTP
server and Erlang support programs. It will be
able to ship applets for installation. Applets for
wiki, music playing, and file launching exist now.